JP2016503291A - 滅菌可能な光重合体血清セパレータ - Google Patents
滅菌可能な光重合体血清セパレータ Download PDFInfo
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Abstract
Description
Claims (20)
- 滅菌可能なセパレータ管であって、
複数の重合性化合物と、ラジカル捕捉剤と、重合開始剤と、を含むセパレータ組成物を含み、
前記ラジカル捕捉剤は、滅菌に有効な線量のラジカルを発生させる放射線に前記セパレータ管の少なくとも一部を曝露させる際に、前記重合性化合物の実質的な重合を防止するのに有効な量で存在し、
前記重合開始剤は、エネルギー源による照射に前記セパレータ管の少なくとも一部を曝露させる際に、前記重合性化合物の重合を介して固体の架橋された組成物を形成するのに有効な量で存在する、
セパレータ管。 - 前記エネルギー源は、紫外線を放射する光源である、請求項1に記載のセパレータ管。
- 前記ラジカル捕捉剤は、前記照射の開始から10分以内に前記固体の架橋された組成物が形成されることを可能にするのに有効な量で存在する、請求項1に記載のセパレータ管。
- 前記重合開始剤は、ラジカル光重合開始剤である、請求項1に記載のセパレータ組成物。
- 前記ラジカル捕捉剤は、抗酸化剤、放射線防護剤、フリーラジカル抑制剤、フリーラジカルインターセプター、およびフリーラジカル捕捉剤からなる群から選択される、請求項1に記載のセパレータ組成物。
- ラジカルを捕捉する安定化剤をさらに含む、請求項1に記載のセパレータ組成物。
- 前記複数の重合性化合物が、脂肪族ウレタンジアクリレートおよび脂肪族アクリレートの混合物を含む、請求項1に記載のセパレータ組成物。
- セパレータ管内において試料の相を分離するための方法であって、
ラジカル重合に好適なセパレータ組成物を含有し、それにより固体の架橋された組成物を形成するセパレータ管を提供することと、
電離放射線で前記セパレータ管を照射して、それにより滅菌に有効な量のラジカルを発生させるとともに、前記セパレータ管を照射するステップに起因する実質的な重合を防止するために、少なくとも一部の前記ラジカルをラジカル捕捉剤で捕捉することと、
前記セパレータ管内で試料を前記セパレータ組成物と混合することと、
前記セパレータ管を遠心分離し、それにより前記試料の高密度相から前記試料の低密度相を、前記セパレータ組成物の少なくとも一部が前記低密度相と前記高密度相との間に局在するように分離することと、
それによって固体架橋組成物を前記低密度相と前記高密度相の間に形成するために、前記セパレータ組成物のラジカル重合を開始するために、前記セパレータ管の少なくとも一部をUV光および可視光のうちの少なくとも一つで照射して、それにより前記低密度相と前記高密度相との間に固体の架橋された組成物を形成することと、
を含む方法。 - 前記セパレータ管の照射は、遠心分離機内で起こる、請求項8に記載の方法。
- 前記ラジカル捕捉剤は、抗酸化剤、放射線防護剤、フリーラジカル抑制剤、フリーラジカルインターセプター、およびフリーラジカル捕捉剤からなる群から選択される、請求項8に記載の方法。
- 前記固体の架橋された組成物の形成は、前記照射のステップの10分以内に完了する、請求項8に記載の方法。
- 前記照射のステップは、少なくとも15kGyの線量のガンマ線照射またはe−ビーム照射を用いて実施される、請求項8に記載の方法。
- 前記ラジカル捕捉剤は、2mM〜8mMの濃度で存在する、請求項8に記載の方法。
- 前記セパレータ組成物は、脂肪族ウレタンジアクリレートおよび脂肪族アクリレートの混合物を含む、請求項12に記載の方法。
- セパレータ管内において使用するためのセパレータ組成物を調製する方法であって、
複数の重合性化合物、ラジカル捕捉剤、およびラジカル光重合開始剤を混ぜ合わせてベース混合物を形成することと、
前記ベース混合物へ密度充填剤を混ぜ合わせて密度の調整されたセパレータ組成物を形成すること、および前記密度の調整されたセパレータ組成物をセパレータ管へと充填することと、
前記密度の調整されたセパレータ組成物および前記管を、ラジカルを発生させるエネルギー源で、前記密度の調整されたセパレータ組成物および前記管を滅菌するのに十分な時間照射することと、
を含み、前記ラジカル捕捉剤は、(a)前記照射のステップによって発生するラジカルを捕捉して、それにより前記重合性化合物の実質的な重合を防止するのに有効な量で、および(b)前記ラジカル光重合開始剤を活性化させた際に、前記重合性化合物の実質的な重合を可能にするのに有効な量で存在する、方法。 - 前記ラジカル捕捉剤は、前記ラジカル光重合開始剤を活性化させた際に、10分以内に前記重合性化合物の実質的な重合を可能にするのに有効な量で存在する、請求項15に記載の方法。
- 前記ベース混合物を所定の期間にわたってインキュベートすること、前記ベース混合物をさらに混合すること、および、前記ベース混合物に前記密度充填剤を混ぜ合わせるステップの前に前記ベース混合物を清澄化すること、からなる群から選択される少なくとも1つのステップをさらに含む、請求項15に記載の方法。
- 前記照射のステップ後に、40℃〜90℃の温度で前記密度の調整されたセパレータ組成物をインキュベートするステップをさらに含む、請求項17に記載の方法。
- 前記照射のステップは、ガンマ線またはe−ビーム放射線を使用して実施される、請求項15に記載の方法。
- 前記ラジカル光重合開始剤の活性化は、UV光源およびVIS光源のうちの少なくとも1つを用いた前記ラジカル光重合開始剤の照射を含む、請求項19に記載の方法。
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